CN104210955A - Crane safety monitoring management system based on Ethernet architecture - Google Patents
Crane safety monitoring management system based on Ethernet architecture Download PDFInfo
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- CN104210955A CN104210955A CN201410451061.XA CN201410451061A CN104210955A CN 104210955 A CN104210955 A CN 104210955A CN 201410451061 A CN201410451061 A CN 201410451061A CN 104210955 A CN104210955 A CN 104210955A
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Abstract
The invention discloses a crane safety monitoring management system based on an Ethernet architecture. The crane safety monitoring management system comprises a safety monitoring system mainframe, a crane PLC mainframe, a photoelectric coder, a weighing instrument and an anemograph. The crane safety monitoring management system is characterized in that the crane mainframe, the weighing instrument and the anemograph are connected with the safety monitoring system mainframe by an Ethernet exchanger to realize the crane safety monitoring system with the Ethernet architecture; the weighing instrument and the anemograph are connected with the Ethernet exchanger by a serial server; and the crane PLC mainframe is connected with the photoelectric coder of a DP interface. Compared with the prior art, the crane safety monitoring management system has the characteristics of low signal distortion, interference resistance, no analog quantity signal transmission link in system communication, global digital signal transmission, less system delay, high signal transmission speed, unified system part interfaces, improved compatibility, lower cost of an Ethernet equipment module, convenience for producing and maintaining software and hardware, reduced engineering cost, convenience for system extension, only need of accessing novel equipment in the network and capability of configuration through simple allocation.
Description
Technical field
The present invention relates to industrial automatic control and communication technique field, especially a kind of crane safety monitoring management system based on ethernet framework.
Background technology
Along with the development of national economy, handling machinery is widely used in every profession and trade and field.In recent years, the safety misadventure of hoisting crane takes place frequently, and crane safety becomes the important leverage in industrial production activities.Meanwhile, the departments such as national handling machinery Quality Supervision and Inspection Center put into effect the national regulation of GB/T28264-2012 " elevator machinery security monitoring management system " in recent years, and require to apply security monitoring management system at large and medium-sized elevator machinery.This system can improve crane safety, conveniently reviews device history mode of operation, meets the requirement of analysis of failure, therefore, meets the hoisting crane all needs configuration security monitoring management systems in regulating scope.
Require that hoisting crane is equipped with the hardware facilities such as signal Bian collection unit, signal processing unit according to GB/T 28264-2012, wherein information Bian collection unit is for reading information source data.Hoisting crane there are the signal source equipments such as multiple instrument, sensor, coder, these signal source equipments all have respective signaling interface and type of transmission (comprising physical interface and logic interface), safety supervision system, in order to gather these signals, needs multi-form signaling interface to be incorporated in safety supervision system host.In order to realize above-mentioned functions, need the signal gathering unit for safety supervision system configuration various ways, common signal source has following several:
(1), weigh or torque signals: gathered by weighing instrument, interface is generally 4 ~ 20mA analog quantity or RS485 bus.
(2), wind velocity signal: gathered by anemoscope, interface is generally 4 ~ 20mA analog quantity or RS485 bus.
(3), lifting altitude signal: gathered by coder, interface is generally Profibus DP(and is called for short DP) bus or other fieldbus.
(4), pivot arm rack position signal: by coder or level sensor collection, interface is generally DP bus or RS485 bus.
Safety supervision system host adopts PLC to communicate, from PLC obtain signal number according to or direct and each signal gathering unit communicate, due to the variety of above-mentioned signaling interface, no matter which kind of scheme, all there are the needs of signaling interface conversion, therefore need the signal gathering unit configuring various ways.PLC carries out communication needs configuration PLC analog module, RS485 module etc., and direct and each signal gathering unit communicates, and needs configuration PC RS485 interface card, DP interface card, analog quantity interface card etc.According to GB specification, owing to will gather the part hoisting crane run signal of PLC inside, safety supervision system usually adopts and obtains signal number certificate from PLC.
Prior art Problems existing is: (1) acquisition of signal selects analog quantity mode, then there is modulus-digital-to-analogue multiple conversions, and signal accuracy reduces.Be digital instrumentation in current industry, if to weigh or wind velocity signal is transmitted by analog quantity, then there is the situation of digital-to-analogue two times transfer.First, sensor original analog (some air velocity transducer original signal is digital pulse signal) carries out digitalisation in gauge internal; Then, digital signal transfers analog signals to, is transferred to PLC by analog quantity interface; Again, analog signal is translated into digital signal by PLC.Modulus in the process-digital-to-analogue multiple conversions, its signal accuracy must reduce.(2) interface module cost is high, PLC analog module, and RS485 module etc. are all higher than common digital I/O module.(3) extendability is poor, if desired increases new signal source, must increase new signal gathering unit, and amendment PLC hardware configuration, according to RS485 communication, then need to reset master-salve station, extendability is poor.
Summary of the invention
The object of the invention is a kind of crane safety monitoring management system based on ethernet framework designed for the deficiencies in the prior art, adopt the ethernet device module of integrated system unit interface, realize the safety supervision system that speed of transmission is high, signal distortion is little, system run all right, data transmission is reliable, structure is simple, compatible good, engineering cost is low, easy to maintenance, be conducive to the further genralrlization application of safety supervision system, for crane safety provides failure-free important leverage.
The object of the present invention is achieved like this: a kind of crane safety monitoring management system based on ethernet framework, comprise safety supervision system host, hoisting crane PLC main frame, photoelectric encoder, weighing instrument and anemoscope, be characterized in that crane mainframe, weighing instrument are connected with safety supervision system host by Ethernet switch with anemoscope, realize the hoisting crane safety supervision system of ethernet framework; Described weighing instrument and anemoscope adopt RS232/485 interface to be connected with Ethernet switch by serial server; Described hoisting crane PLC main frame is connected with the photoelectric encoder of DP interface.
It is little that the present invention compared with prior art has signal distortion, disturbance rejection, without analog signals transmission link in system communication, overall situation digital data transmission, system delay is few, and signaling rate is high, unify system unit interface, improve compatible, ethernet device module cost is lower, facilitates software and hardware manufacture to safeguard, reduce engineering cost, system extension is convenient, only new installation need be accessed network, easy configuration and configurable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
For certain shipbuilding yard 300t large-sized gantry crane, the present invention is further elaborated below:
Embodiment 1
Accompanying drawings 1, the signal gathering unit of certain shipbuilding yard 300t large-sized gantry crane security monitoring management system adopts ethernet communication.Safety supervision system host 1 adopts model to be IPC-510MB/AIMB-562/E5300, and data-interface is ethernet, and access way is direct; Ethernet switch 2 adopts model to be
cVR100M, data-interface is ethernet, and access way is direct; Serial server 3 adopts model to be
mOXA-NPort 5232Itwo-way serial ports, data-interface is ethernet, and access way is direct; Hoisting crane PLC main frame 4 adopts model to be
cPU 315-2PN/DP, data-interface is ethernet, and access way is direct; Photoelectric encoder 5 adopts model to be
pVM-58I-011AG-R0BN-1213, data-interface is DP, and access way is conversion; Weighing instrument 6 adopt model be permanent Mei Laida-
300tsignal source equipment, data-interface is
rS485, access way is conversion; Anemoscope 7 adopts model to be
fA130Csignal source equipment, data-interface is
rS485, access way is conversion
.described hoisting crane PLC main frame 4 is connected with safety supervision system host 1 by Ethernet switch 2; Described weighing instrument 6 and anemoscope 7 adopt RS232/485 interface to be connected with Ethernet switch 2 by serial server 3; Described photoelectric encoder 5 adopts DP interface to be connected with hoisting crane PLC main frame 4; Described safety supervision system host 1 adopts ethernet to be connected with Ethernet switch 2, realizes the hoisting crane safety supervision system communication of ethernet framework.
Hardware setting of the present invention: safety supervision system host 1 adopts Ethernet interface to be the industrial computer of standard configuration; Hoisting crane PLC main frame 4 configuration ethernet mouth or support Ethernet interface by expansion module; Weighing instrument 6 and anemoscope 7 configure RS232/485 interface; Photoelectric encoder 5 configures DP interface or configuration ethernet interface, accesses safety supervision system host 1 after wherein the signal source equipment of RS232/485 interface need carry out signal conversion by serial server 3; The signal of the coder 5 of DP interface then accesses safety supervision system host 1 by hoisting crane PLC main frame 4.
Software design patterns of the present invention: the equipment of the direct access network based on ethernet of the coder 5 for DP interface, safety supervision system host 1 directly can read data.For weighing instrument 6 and the anemoscope 7 of translation interface, need the configuration carrying out software format.
For the permanent Mei Laida-300t of weighing instrument 6() (send real time data continuously with 500ms, do not need to postback), its communication protocol content is as follows:
TX: instrument sends data
| Frame head | Address | Frame length | Function code | Data field | LRC verifies |
| ‘:’(0x3A） | 0x01 | 0x11 | 0x42 | ? | ? |
Array distinguishes four groups, A hook, B hook, C hook, D hook.
Often organize data be 3 bytes, the first byte is scale, is 2 herein, rear two bytes be real-time load amplify 100 times round after (unsigned short type data) data, low byte is front, and high byte is rear.
Frame length: to the data length of LRC verification from frame head, be byte.
LRC verifies: data summation low level (high position is removed) negate from frame head to data field adds 1.
Serial ports configures: 4800,8, n.
Such as: data field three byte is that to represent actual load-carrying be 20.00T for 0x02,0xD0,0x07.
According to communication protocol, carry out corresponding software merit rating to serial server 3, namely safety supervision system host 1 can read the data of signal source, realizes ethernet communication unified between each equipment.
Just the present invention will be further described for above embodiment, and be not used to limit patent of the present invention, allly implements for the present invention's equivalence, within the right that all should be contained in patent of the present invention.
Claims (1)
1. the crane safety monitoring management system based on ethernet framework, comprise safety supervision system host, hoisting crane PLC main frame, photoelectric encoder, weighing instrument and anemoscope, it is characterized in that hoisting crane PLC main frame, weighing instrument is connected with safety supervision system host by Ethernet switch with anemoscope, realize the hoisting crane safety supervision system of ethernet framework; Described weighing instrument and anemoscope adopt RS232/485 interface to be connected with Ethernet switch by serial server; Described hoisting crane PLC main frame is connected with the photoelectric encoder of DP interface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410451061.XA CN104210955A (en) | 2014-09-05 | 2014-09-05 | Crane safety monitoring management system based on Ethernet architecture |
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|---|---|---|---|
| CN201410451061.XA CN104210955A (en) | 2014-09-05 | 2014-09-05 | Crane safety monitoring management system based on Ethernet architecture |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105858479A (en) * | 2016-06-08 | 2016-08-17 | 中船第九设计研究院工程有限公司 | Distributed large gantry crane weighing system based on Ethernet |
| CN105947894A (en) * | 2016-06-21 | 2016-09-21 | 中船第九设计研究院工程有限公司 | Crane safety monitoring and control management communication system based on DP bus |
| CN109189032A (en) * | 2018-10-22 | 2019-01-11 | 中船第九设计研究院工程有限公司 | Shipyard workshop data management system based on CS/BS mode |
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| CN2747793Y (en) * | 2004-10-27 | 2005-12-21 | 蔡仲伦 | Industrial controlled network appts. based on tandem server |
| DE102008021249A1 (en) * | 2008-04-28 | 2009-11-19 | Miroslaw-Anton Przybyl | Wireless camera system for use on crane to monitor crane load during loading/unloading of goods, has monitor attached to cabin of crane operator, receiving video signal from wireless camera and representing video signal in form of image |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105858479A (en) * | 2016-06-08 | 2016-08-17 | 中船第九设计研究院工程有限公司 | Distributed large gantry crane weighing system based on Ethernet |
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| CN109189032A (en) * | 2018-10-22 | 2019-01-11 | 中船第九设计研究院工程有限公司 | Shipyard workshop data management system based on CS/BS mode |
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Application publication date: 20141217 |